[1] [1] Editorial Board of China Aeronautical Materials Handbook. China aeronautical materials handbook［M］. Beijing: China Standard Press, 2001: 806-813.

[2] [2] Zhang Lihui, Tang Dingzhong, Cao Xuegang. Damage and fracture characteristics of single crystal superalloy［J］. Failure Analysis and Prevention, 2012, 7(3): 148-152.

[3] [3] Liu Yesheng, Han Pinlian, Hu Shoufeng, et al. Development of laser additive manufacturing with metallic materials and its application in aviation engines［J］. Aeronautical Manufacturing Technology, 2014(10): 62-67.

[4] [4] Xue Lei, Huang Weidong, Chen Jing, et al. Application of laser forming repair technology on the aerial castings［J］. Foundry Technology, 2008, 29(3): 391-394.

[5] [5] Qi Baolu, Zhang Anfeng, Zhang Wenlong, et al. Research on mechanical properties of DZ125L columnar crystal blade directionally repaired by laser direct forming［J］. Chinese J Lasers, 2015, 42(6): 0603002.

[6] [6] Vilar R, Almeida A. Repair and manufacturing of single crystal Ni-based superalloys components by laser powder deposition - A review［J］. Journal of Laser Applications, 2015, 27(s1): s17004.

[7] [7] McNutt P A. An investigation of cracking in laser metal deposited nickel superalloy CM247LC［D］. Birmingham: University of Birmingham, 2015: 14-21.

[8] [8] Anderson T D, Dupont J N. Stray grain formation and solidification cracking susceptibility of single crystal Ni-based superalloy CMSX-4［J］. Welding Journal, 2011, 90(2): 27-31.

[9] [9] Rottwinkel B, Schweitzer L, Noelke C, et al. Challenges for single-crystal (SX) crack cladding［J］. Physics Procedia, 2014, 56: 301-308.

[10] [10] Rottwinkel B, Nlke C, Kaierle S, et al. Crack repair of single crystal turbine blades using laser cladding technology［J］. Procedia CIRP, 2014, 22: 263-267.

[11] [11] Henderson M B, Arrell D, Larsson R, et al. Nickel based superalloy welding practices for industrial gas turbine applications［J］. Science and Technology of Welding and Joining, 2004, 9(1): 13-21.

[12] [12] Zhao Xiaoming, Chen Jing, He Fei, et al. The cracking mechanism of Rene88DT superalloy by laser rapid forming［J］. Rare Metal Materials and Engineering, 2007, 36(2): 216-220.

[13] [13] Zhong M, Sun H, Liu W, et al. Boundary liquation and interface cracking characterization in laser deposition of Inconel 738 on directionally solidified Ni-based superalloy［J］. Scripta Materialia, 2005, 53(2): 159-164.

[14] [14] Xi Mingzhe, Gao Shiyou. Microstructure and mechanism of cracks forming of Rene 80 high-temperature alloy fabricated by laser rapid forming process［J］. Chinese J Lasers, 2012, 39(8): 0803008.

[15] [15] Zhang F, Tan H, Chen J. Elimination of turned dendrite in laser multilayer deposition of Rene88DT superalloy on DD3 single crystal［J］. Chinese Optics Letters, 2012, 10(4): 041401.

[16] [16] Huang Weidong, et al. Laser solid fabrication［M］. Xi′an: Northwestern Polytechnical University Press, 2007: 250-276.

[17] [17] Wang N, Mokadem S, Rappaz M, et al. Solidification cracking of superalloy single-and bi-crystals［J］. Acta Materialia, 2004, 52(11): 3173-3182.

[18] [18] Ojo O A, Chaturvedi M C. Liquation microfissuring in the weld heat-affected zone of an overaged precipitation-hardened nickel-base superalloy［J］. Metallurgical and Materials Transactions A, 2007, 38(2): 356-369.

[19] [19] Acharya R. Multiphysics modeling and statistical process optimization of the scanning laser epitaxy process applied to additive manufacturing of turbine engine hot-section superalloy components［D］. Atlanta: Georgia Institute technology, 2014: 50-80.

[20] [20] Miller W A, Chadwick G A. On the magnitude of the solid/liquid interfacial energy of pure metals and its relation to grain boundary melting［J］. Acta Metallurgica, 1967, 15(4): 607-614.